Class Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi Subclass Actinopterygii Woodward, 1891 - ray-finned fishes see Class Actinopterygii Woodward, 1891 Cladistia see Subclass Cladistia Cope, 1870 Genus †Guildayichthys Lund, 2000